Pump.



APPLICATION FILED AUG. 16, 1907- 2 SHEETS-SHEET 1.

No. 873,394- PATENTBD DEC. 10, 1907.

H. WAH-LER.

PUMP. APPLIOATION FILED AUG. 16/1907.

- 2 SHEETS-SHEET 2,

v 1'": NORRIS P515125 cm, WASHINGTON, sic.

HENRY WAHLER, OF ESTHEBVILLE, IOWA.

PUMP.

Specification of Letters Itatent.

Patented Dec. 10, 1907.

Application filed August 16. 1907- Serial No. 383.915.

To all whom it may concern:

Be it known that I, HENRY WAHLER, citizen of the United States, residing at Estherv'ille, in the county of Emmet and State of Iowa, have invented certain new and useful Improvements in Pumps, of which the following is a specification.

The present invention relates to improvements 1n pumps of that character which are 0 erated by a solid reciprocating piston and W 'ch are so designed as to produce a continuous flow of water.

The primary object of the invention is to provide a pump of this character in which the component parts are peculiarly designed and assembled so that access can be readily had to any part thereof for cleaning or repairing purposes.

For a full understanding of the invention and the merits thereof and also to acquire a knowledge of the details of construction of the means for effecting the result, reference is to be had to the following description and accompanying drawings, in which:

Figure 1 is a longitudinal sectional view through the pump on the line w-m of Fig. 2; Fig. 2 is a similar view on the line 'yy of Fig. 1; Fig. 3 is a transverse sectional view through the lower section of the base of the pump on the line zzf of Fig. 1; Fig. 4 is a sec tional view through the cap of the pump on the line aa of Fig. 1.; Fig. 5 is a similar view through the pump barrel on line bb of Fig. 1; and, Fig. 6 is a similar view through the upper section of base on line c-c of Fig.1.

Corresponding and like parts are referred to in the following description and indicated in all the views of the drawings by the same reference characters.

The numeral 1 designates the portion of the casing comprising the pump barrel and it will be observed that longitudinal enlargements 2 are formed upon opposite sides of the barrel, the said enlargements being hollow so as to form the passages 3 and 4 which extend from end to end of the section 1 of the casing. A cap 5 is located at the upper end of the casing and both serves as a connecting means for the outlet pipe 6 and forms the outlet chamber 7. The plate 8 is interposed between the cap 5 and the barrel 1 and this plate is formed with the opening 9 which normally registers with the longitudinal passage 3 along the barrel 1 and also .with the opening 10 communicating with the interior of the barrel 1 at the upper end thereof. This latter 0 ening 10 is provided with a valve for regulating the flow of the water and in the present instance, an upwardly swinging flap valve 11 is employed. The piston rod 12 passes through the stufling box 13 formed in connection with the plate 8 and has the piston 14 connected thereto, the said piston being shown as comprising a pair of spaced plates having the body portions of two oppositely disposed cup shaped washers clamped therebetween. With this arrangement of the Washers all leakage around the piston is efi'ectively revented, regardless of the direction in whic the piston is moving.

It will be observed that while the longitudinal passage 3 extending along the barrel 1- communicates directly with the outlet chamber 7 and thence with the outlet pipe 6, the opposite longitudinal passage 4 communicates with the interior of the barrel 1 through the opening 15.

The base or lower end of the pump casing is formed in two sections, the end section 16, and the section 17 which is interposed between the said end section and the barrel 1. Both of the sections 16 and 17 correspond in shape to the shape of the barrel section of the pump and are provided at approximately their central portions with annular walls forming the inlet passage 18 leading from the inlet pipe 19 to the lower portion of the barrel 1.

At the point where the inlet passage 18 enters the barrel, a valve 20 is located, which, in the present instance, is in the nature of an upwardly swinging fla valve and prevents any backward flow 0 the water from the barrel into the inletpipe.

The section 17 of the base of the pump is formed with the four radial partitions 21 which extend from the beforementioned annular wall surrounding the inlet passage 18 to the outer walls of the section and subdivide the section into the two end compartments 22 and 23 and the oppositely disposed side compartments 24. These side compartments 24 are in direct communication with the lower portion of the pump barrel 1, while the end compartments 22 and 23 communicate, respectively, with the longitudinal passages 3 and 4 extending along the barrel 1.

In the specific formation of the lower section 16 of the base of the casing, it will be observed. that the annular wall surrounding the inlet passage 18 is cut away on one side to form the opening 25 and that partitions 26 extend from opposite sides of the opening 25 to the outer walls of the section. This results in dividing the said section 16 into the two end compartments 27 and 28, the former serving as a connecting passage between the compartments 24 and 22 in the section 17 of the base, while the latter communicates with the'compartment 23 of the section 17 and thence with the longitudinal passage 4. The upper end of the section 16 of the base is formed with the two openings 29 and 30 which are located, respectively, over the compartments 27 and 28 and are provided with the similarly constructed flap valves 31 and 41 which prevent any backward flow of the water through either of the longitudinal passages 3 and 4.

The meeting ends of the various sections of the casing are formed with the outwardly extending annular flanges 32 through which the bolts or other fastening members 33 are passed and by means of which the sections are secured together when the pump is in use. It will also be found desirable to interpose a gasket 34 between each of the sections as is indicated upon the drawings. Attention is directed to the fact that the various valves are located at the junction of two sections so that by removing either one of the sections direct access can be had thereto should the pump become clogged and the valves be out of Working condition.

When the piston 13 is on its upward path within the barrel 1, the water is sucked into the lower portion of the barrel through the inlet passage 18, the valve 20 opening for this purpose while the valve 31 closes to prevent any backward flow of the water through the longitudinal passage 3. At the same time the water above the piston 14 is forced upwardly through the opening 10 into the outlet chamber 7 and thence through the outlet pipe 6, the valve 11 opening for this purpose while the valve 41 closes to prevent backward flow through the longitudinal passage 4. Upon the reverse or downward movement of the piston, the valves 1 1 and 20 are closed and the water which was previously sucked into the lower portion of the barrel is forced downwardly through the compartments 24 in the intermediate section 17 of the casing and thence through the compart- -ment 27 of the lower section 16 of the casing up through the valve 31 into the longitudinal passage 3 and the outlet chamber 7. It will be apparent that this same movement of the piston will open the valve 41 and draw the water into the upper portion of the valve. In this manner a continuous flow is produced, regardless of the direction in which the piston is moving. Since the flap valves are all located at the junction between two sections of the casing, it will be apparent that if found desirable they may be made integral with the gaskets 34 as designated in the various iigures oi the drawings.

Having thus described the invention, what is claimed as new is:

1. In a pump, the combination ol a barrel having longitudinal passages extending along the sides thereof, a piston operating within the pump barrel, a cap applied to the upper end of the barrel and formed with an outlet, a plate interposed between the cap and barrel and. formed with openings establishing communication between the barrel and the cap and one of the longitudinal passages and the cap, the opposite longitudinal passage (ommunicating directly with the barrel, a valve controlling the communication between the barrel and the cap, a base detachably applied to the lower end of the barrel and formed in a plurality of annular sections, the said base being provided with an inlet passage communicating with the pump barrel and also with a pair of opposite compartments, one of which establishes connnunieation between the interior of the pump barrel and the longitudinal passage extending along the pump barrel and leading to the cap, while the opposite compartment communicates with the inlet passage and also with the opposite longitudinal passage along the pump barrel, a valve preventing any backward flow of the water from the barrel to the inlet passage, and valves preventing any backward flow of water through either of the before mentioned. longitudinal passages along the pump barrel, the said valves being located at the junction of the sections of the base.

2. In a pump, the combination of a cylinder having a pair of longitudinal passages extending along the sides thercol, one of said passages and the upper end of the pump barrel being in communication with an outlet, while the opposite longitudinal pasasge eommunicates directly with the pump barrel, a piston operating within the pump barrel, :1. base detachably applied to the lower end ol'- the pump barrel and formed with two sections, each of the sections being provided at approximately its central portion with an annular wall forming an inlet passage leading to the pump barrel, the upper section being divided by radial partitions into a series of compartments surrouruling the annular wall and communicating respectively with. the interior of the pump barrel and the two longitudinal passages extending along the pump barrel, while the lower section ol the base is subdivided by similar partitions into two compartments, one 01 which establishes communication bet veen those eompartinen is of the upper section in communication with the pump barrel and the compartment of the said upper section communieating with the longitudinal passage leading to the outlet,

while the opposite compartment of the said lower section is in communication with the inlet passage and leads to that compartment of the upper section in communication with the longitudinal passage communicating directly with the pump barrel, a valve for preventing backward flow from the pump barrel to the inlet passage, and a pair of valves operating to prevent backward flow through eithenof the before mentioned longitudinal passages.

3. In a pump, the combination of a cylinder having a pair of longitudinal passages eX- tending along the sides thereof, a piston operating within the pump barrel, a cap located at the upper end of the barrel and formed with an outlet, the said cap communicating with one of the longitudinal passages extending along the pump barrel and also communieating directly with the pump barrel, the opposite longitudinal passage being in direct communication with the pump barrel, a valve for preventing backward flow from the cap to the pump barrel, a base detachably applied to the lower end of the pump barrel and formed in two sections, each of said sections being provided at approximately its central portion with an annular wall and the said annular walls being in alinement with each other and forming an inlet passage leadsection in communication with the pump barrel with the compartment of the said upper section in communication with the longitudi nal passage leading to the cap, while the opposite compartment of the lower section is in communication with the inlet passage and also with that compartment of the upper section communicating with the longitudinal passage leading to the pump barrel, a valve for preventing any backward flow of water from the barrel to the outlet passage, and a pair ofvalves for preventing any backward flow of water through either of the longitudinal passages.

' In testimony whereof I aflix my signature in presence of two witnesses.

HENRY WAHLER. Witnesses: CHRIS LARSON, J. O. KASA. 1 

